公开(公告)号：US09649770B1

公开(公告)日：2017-05-16

申请号：US15082157

申请日：2016-03-28

Applicant: Hiwin Technologies Corp.

Inventor： Zong Sian Jiang ,  Wuteng Hsieh ,  Peiling Chung

IPC: H01F7/20 ,  B25J15/06 ,  H01F7/02

CPC classification number: B25J15/0608 ,  B65G47/92 ,  B66C1/04 ,  H01F7/04

Abstract: A magnetic holding device includes a receptacle having a chamber formed by an upper fence and a bottom portion, an attracting device supported in the receptacle and spaced from the bottom portion of the receptacle for forming a space between the bottom portion of the receptacle and the attracting device, and a shielding device includes a non-shielding element and a magnetic shielding member, the attracting device is capable of attracting a work piece when the non-shielding element is located below the attracting device, and the attracting device is shielded and prevented from attracting the work piece when the magnetic shielding member is located below the attracting device.